package com.mmall.common;

import org.codehaus.jackson.annotate.JsonIgnore;
import org.codehaus.jackson.map.annotate.JsonSerialize;

import java.io.Serializable;

/**
 * Created by lcx on 2017/5/10.
 */
@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL)
//保证json序列化的时候，如果是null的对象，key也会消失
public class ServerResponse<T> implements Serializable {

    private int status;
    private String msg;
    private T date;

    private ServerResponse(int status) {
        this.status = status;
    }

    private ServerResponse(int status, T date) {
        this.status = status;
        this.date = date;
    }

    private ServerResponse(int status, String msg, T date) {
        this.status = status;
        this.msg = msg;
        this.date = date;
    }

    private ServerResponse(int status, String msg) {
        this.status = status;
        this.msg = msg;
    }

    //这样就不会序列化这个字段
    @JsonIgnore
    public boolean isSuccess() {
        return this.status == ResponseCode.SUCCESS.getCode();
    }

    public int getStatus() {
        return status;
    }


    public String getMsg() {
        return msg;
    }

    public T getDate() {
        return date;
    }

    public static <T> ServerResponse<T> createBySuccess() {
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode());
    }

    public static <T> ServerResponse<T> createBySuccessMessage(String msg) {
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(), msg);
    }

    public static <T> ServerResponse<T> createBySuccess(T date) {
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(), date);
    }

    public static <T> ServerResponse<T> createBySuccess(String msg, T date) {
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(), msg, date);
    }

    //ERROR

    public static <T> ServerResponse<T> createByError() {
        return new ServerResponse<T>(ResponseCode.ERROR.getCode(), ResponseCode.ERROR.getDesc());
    }

    public static <T> ServerResponse<T> createByErrorMessage(String errorMessage) {
        return new ServerResponse<T>(ResponseCode.ERROR.getCode(), errorMessage);
    }

    public static <T> ServerResponse<T> createByErrorCodeMessage(int errorCode, String errorMessage) {
        return new ServerResponse<T>(errorCode, errorMessage);
    }
}
